SAW Components
Low Loss Filter for Mobile Communication
Data Sheet
Features
IF filter for mobile telephone
Channel selection in CDMA systems, Korean PCS
Low insertion attenuation
Extremely high rejection
Single-ended/single-ended, balanced/single-ended
and balanced/balanced operation possible
s
Optimized for single-ended/balanced operation
s
Very small size
s
Package for
Surface Mounted Technology
(SMT)
s
s
s
s
s
B4935
220,38 MHz
Ceramic package
QCC8C
Terminals
s
Ni, gold plated
Dimensions in mm,approx. weight 0,07 g
Pin configuration
2
1+3
6
5
7
4, 8
Input
Input ground or balanced input
Output
Output ground or balanced output
to be grounded
Case ground
Device is reciprocal, i.e. inputs can be used as outputs and vice versa
Type
B4935
Ordering code
B39221-B4935-U310
Marking and Package
according to
C61157-A7-A53
Packing
according to
F61074-V8070-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
T
stg
V
DC
P
s
– 30/+ 85
– 40/+ 85
13
10
˚C
˚C
V
dBm
2
Sep 23, 2002
SAW Components
Low Loss Filter for Mobile Communication
Data Sheet
Characteristics
single-ended/balanced
Operating temperature:
Terminating source impedance:
Terminating load impedance:
B4935
220,38 MHz
T
= -30 ˚C to +80 ˚C
Z
S
= 1050
Ω
|| 63 nH
Z
L
= 610
Ω
|| 60 nH
min.
typ.
220,38
8,2
max.
—
9,5
MHz
dB
Nominal frequency
Insertion attenuation at f
N
(including loss in matching network without loss
in baluns)
Amplitude ripple
(p-p)
f
N
– 0,30 ...
f
N
+ 0,30
Phase linearity
(rms deviation)
f
N
α
fN
—
—
∆α
MHz
∆φ
—
05
1,2
dB
f
N
– 0,63 ...
f
N
+ 0,63
Relative attenuation
(relative to
α
fN
)
f
N
– 0,63 ...
f
N
+ 0,63
MHz
α
rel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
—
2,3
3,2
˚
—
60,0
50,0
40,0
35,0
2,2
73,0
70,0
62,0
39,0
45,0
45,0
41,0
62,0
70,0
73,0
–0,036
30
4,0
—
—
—
—
—
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/K
2
˚C
f
N
– 100,0
f
N
– 50,0
f
N
– 30,0
f
N
– 10,0
...
...
...
...
f
N
+ 1,25
f
N
+ 10,0
f
N
+ 30,0
f
N
+ 50,0
...
...
...
...
f
N
– 50,0
f
N
– 30,0
f
N
– 10,0
f
N
– 1,25
f
N
– 1,25
f
N
+ 1,25
f
N
+ 10,0
f
N
+ 30,0
f
N
+ 50,0
f
N
+100,0
35,0
40,0
50,0
60,0
Temperature coefficient of frequency
1)
Frequency inversion point
TC
f
T
0
—
—
1)
Temperature
dependence of
f
c
:
f
c
(T) =
f
c
(T
0
)(1 +
TC
f
(T –
T
0
)
2
)
3
Sep 23, 2002
SAW Components
Low Loss Filter for Mobile Communication
Data Sheet
Transfer function
(passband, single-ended/balanced):
B4935
220,38 MHz
Transfer function
(narrowband, single-ended/balanced):
4
Sep 23, 2002
SAW Components
Low Loss Filter for Mobile Communication
Data Sheet
Transfer function
(wideband, single-ended/balanced):
B4935
220,38 MHz
5
Sep 23, 2002
DSP and ARM Processors
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